Chronic cough: how do cough reflex sensitivity and subjective assessments correlate with objective cough counts during ambulatory monitoring?
Chronic cough: how do cough reflex sensitivity and subjective assessments correlate with objective cough counts during ambulatory monitoring?
复制标题
DOI:
10.1136/thx.2006.067413
复制
发表时间:
2007-04-01
期刊:
影响因子:
10
通讯作者:
Smith, Jaclyn Ann
中科院分区:
文献类型:
--
作者:
Decalmer, Samantha Clare;Webster, Deborah;Smith, Jaclyn Ann
Background: Cough reflex sensitivity, subjective estimates of cough frequency and cough-related quality of life have been used to assess cough and monitor treatment responses. The relationships between these measures and objective cough monitoring remain unclear and the usefulness of subjective assessments remains questionable.Subjects: 62 patients with chronic cough (39 women) were studied. Mean age of patients was 54.9 (SD 12.2) years, with a median duration of cough of 5.5 (range 1-30) years.Methods: Cough reflex sensitivity testing (C5; citric acid) was performed in all patients before fully ambulatory day-time and night-time cough recordings. Patients scored the frequency and severity of their cough ( Visual Analogue Scales ( VAS) and 0-5 score) for each recording period and completed a cough-related quality-of-life questionnaire, Leicester Cough Questionnaire (LCQ). Ambulatory cough recordings were manually counted and reported in terms of cough seconds per hour (cs/h). Cough rates were log(10) transformed for analysis.Results: The median time spent coughing was 11.36 (range 1.06-46) cs/h with median day rates of 15.59 (range 2-74.8) cs/h and median night rates of 2.94 (range 0-26.67) cs/h. An inverse relationship was seen between day cough rates and log10 C5 (r = -0.452, p